2 files changed, 146 insertions, 0 deletions
diff --git a/include/accel/accel-cpu-ops.h b/include/accel/accel-cpu-ops.h
new file mode 100644
index 0000000000..0674764914
--- /dev/null
+++ b/include/accel/accel-cpu-ops.h
@@ -0,0 +1,95 @@
+/*
+ * Accelerator per-vCPU handlers
+ *
+ * Copyright 2021 SUSE LLC
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef QEMU_ACCEL_CPU_OPS_H
+#define QEMU_ACCEL_CPU_OPS_H
+
+#include "qemu/accel.h"
+#include "exec/vaddr.h"
+#include "qom/object.h"
+
+#define ACCEL_OPS_SUFFIX "-ops"
+#define TYPE_ACCEL_OPS "accel" ACCEL_OPS_SUFFIX
+#define ACCEL_OPS_NAME(name) (name "-" TYPE_ACCEL_OPS)
+
+DECLARE_CLASS_CHECKERS(AccelOpsClass, ACCEL_OPS, TYPE_ACCEL_OPS)
+
+/**
+ * struct AccelOpsClass - accelerator interfaces
+ *
+ * This structure is used to abstract accelerator differences from the
+ * core CPU code. Not all have to be implemented.
+ */
+struct AccelOpsClass {
+    /*< private >*/
+    ObjectClass parent_class;
+    /*< public >*/
+
+    /* initialization function called when accel is chosen */
+    void (*ops_init)(AccelClass *ac);
+
+    bool (*cpus_are_resettable)(void);
+    void (*cpu_reset_hold)(CPUState *cpu);
+
+    void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */
+    void (*kick_vcpu_thread)(CPUState *cpu);
+    bool (*cpu_thread_is_idle)(CPUState *cpu);
+
+    /**
+     * synchronize_post_reset:
+     * synchronize_post_init:
+     * @cpu: The vCPU to synchronize.
+     *
+     * Request to synchronize QEMU vCPU registers to the hardware accelerator
+     * (QEMU is the reference).
+     */
+    void (*synchronize_post_reset)(CPUState *cpu);
+    void (*synchronize_post_init)(CPUState *cpu);
+    /**
+     * synchronize_state:
+     * synchronize_pre_loadvm:
+     * @cpu: The vCPU to synchronize.
+     *
+     * Request to synchronize QEMU vCPU registers from the hardware accelerator
+     * (the hardware accelerator is the reference).
+     */
+    void (*synchronize_state)(CPUState *cpu);
+    void (*synchronize_pre_loadvm)(CPUState *cpu);
+
+    /* handle_interrupt is mandatory. */
+    void (*handle_interrupt)(CPUState *cpu, int mask);
+
+    /* get_vcpu_stats: Append statistics of this @cpu to @buf */
+    void (*get_vcpu_stats)(CPUState *cpu, GString *buf);
+
+    /**
+     * @get_virtual_clock: fetch virtual clock
+     * @set_virtual_clock: set virtual clock
+     *
+     * These allow the timer subsystem to defer to the accelerator to
+     * fetch time. The set function is needed if the accelerator wants
+     * to track the changes to time as the timer is warped through
+     * various timer events.
+     */
+    int64_t (*get_virtual_clock)(void);
+    void (*set_virtual_clock)(int64_t time);
+
+    int64_t (*get_elapsed_ticks)(void);
+
+    /* gdbstub hooks */
+    bool (*supports_guest_debug)(void);
+    int (*update_guest_debug)(CPUState *cpu);
+    int (*insert_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len);
+    int (*remove_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len);
+    void (*remove_all_breakpoints)(CPUState *cpu);
+};
+
+void generic_handle_interrupt(CPUState *cpu, int mask);
+
+#endif /* QEMU_ACCEL_CPU_OPS_H */
diff --git a/include/accel/accel-ops.h b/include/accel/accel-ops.h
new file mode 100644
index 0000000000..23a8c246e1
--- /dev/null
+++ b/include/accel/accel-ops.h
@@ -0,0 +1,51 @@
+/*
+ * Accelerator handlers
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef ACCEL_OPS_H
+#define ACCEL_OPS_H
+
+#include "exec/hwaddr.h"
+#include "qemu/accel.h"
+#include "qom/object.h"
+
+struct AccelState {
+    Object parent_obj;
+};
+
+struct AccelClass {
+    ObjectClass parent_class;
+
+    const char *name;
+    /* Cached by accel_init_ops_interfaces() when created */
+    AccelOpsClass *ops;
+
+    int (*init_machine)(AccelState *as, MachineState *ms);
+    bool (*cpu_common_realize)(CPUState *cpu, Error **errp);
+    void (*cpu_common_unrealize)(CPUState *cpu);
+    /* get_stats: Append statistics to @buf */
+    void (*get_stats)(AccelState *as, GString *buf);
+
+    /* system related hooks */
+    void (*setup_post)(AccelState *as);
+    void (*pre_resume_vm)(AccelState *as, bool step_pending);
+    bool (*has_memory)(AccelState *accel, AddressSpace *as,
+                       hwaddr start_addr, hwaddr size);
+
+    /* gdbstub related hooks */
+    int (*gdbstub_supported_sstep_flags)(AccelState *as);
+
+    bool *allowed;
+    /*
+     * Array of global properties that would be applied when specific
+     * accelerator is chosen. It works like MachineClass.compat_props
+     * but it's for accelerators not machines. Accelerator-provided
+     * global properties may be overridden by machine-type
+     * compat_props or user-provided global properties.
+     */
+    GPtrArray *compat_props;
+};
+
+#endif /* ACCEL_OPS_H */